Loctite universal structural adhesives: Loctite HY 4070 and HY 4090
The adhesive manufacturer Henkel offers several universal structural adhesives under the Loctite brand, of which the two two-component adhesives Loctite HY 4070 and Loctite HY 4090 are presented here in comparison.
Advantages of universal structural adhesives with hybrid technology
The universal structural adhesive Loctite HY 4070 is a two-component adhesive made from a combination of cyanoacrylate and methacrylate. The universal structural adhesive Loctite HY 4090 is also a two-component hybrid adhesive, whereby cyanoacrylate is combined with epoxy resin.
The advantage of the universal structural adhesives Loctite HY 4070 and Loctite HY 4090 – both with hybrid technology – over epoxy or methyl methacrylate adhesives (MMA adhesives), for example, is that they cure quickly and work with almost all materials.
Henkel’s Loctite Universal Structural Adhesives are designed for strong and durable bonds and to meet maintenance repair requirements for applications including the following:
- Structural bonding of multiple surfaces
- Structural bonding of different substrates
- Structural high-performance bonding
Loctite HY 4070 from Henkel
The universal structural adhesive Loctite HY 4070 is a two-component adhesive made from a combination of cyanoacrylate and methacrylate, whereby the mixing ratio is 10 parts cyanoacrylate to one part methacrylate. Loctite HY 4070 adhesive is used in applications where complete curing of excess adhesive is required. The universal structural adhesive is also characterized by the following properties:
- Suitable for the following applications: Direct bonding, edge bonding, rubber bonding, plastic bonding, bonding of various material combinations, construction, interior repairs, structural bonding
- Suitable for the following materials: thermoset, elastomer: highly filled elastomer, epoxy, fiberboard, gelcoat, wood, rubber, plastic, painted surfaces, laminate, metal, without gelcoat, phenolic resin, thermoplastic, dry surfaces, urethane: urethane casting, composites, composites: advanced composites, vinyl
- Finite Element Analysis (FEA): finite strain, viscoelastic
The universal structural adhesive Loctite HY 4070 can be ordered and purchased online in Switzerland from the Henkel distributor abovo.
Loctite HY 4090 from Henkel
The universal structural adhesive Loctite HY 4090 is also a two-component hybrid adhesive, in which cyanoacrylate is combined with epoxy resin in a mixing ratio of 1 to 1. The Loctite HY 4090 adhesive is also characterized by the following properties:
- Suitable for the following applications: Direct bonding, edge bonding, rubber bonding, plastic bonding, bonding of various material combinations, construction, exterior repairs, interior repairs, structural bonding
- Suitable for the following materials: thermoset, elastomer: highly filled elastomer, epoxy, fiberboard, gelcoat, wood, rubber, plastic, painted surfaces, laminate, metal, without gelcoat, phenolic resin, thermoplastic, dry surfaces, urethane: urethane casting, composites, composites: advanced composites, vinyl
- Finite Element Analysis (FEA): finite strain, viscoelastic
- non-flammable
- odorless
- ISO 10993-certified for medical applications
The universal structural adhesive Loctite HY4090 can also be ordered and purchased online in Switzerland from the Henkel distributor abovo.
Difference between Loctite HY 4070 and Loctite HY 4090
The difference between the two-component adhesives Loctite HY 4070 and HY 4090 lies in the ingredients, among other things. Although both universal structural adhesives are hybrid adhesives, Loctite HY 4070 is a combination of cyanoacrylate and methacrylate, while Loctite HY 4090 is a combination of cyanoacrylate and epoxy resin.
The following table compares some of the key properties of Loctite HY 4070 and Loctite HY 4090:
| Loctite HY 4070 | Loctite HY 4090 | |
| Hybrid adhesive type | Cyanoacrylate methacrylate | Cyanoacrylate epoxy resin |
| Mixing ratio | 10:1 | 1:1 |
| Consistency/viscosity | gel-like, drip-free | highly viscous, gel-like, drip-free |
| Color | transparent, cloudy, colorless to slightly yellowish | Old white to light yellow |
| Alignment time | < 60 seconds | < 180 seconds |
| Curing | at room temperature | at room temperature |
| Gap filling capacity | up to 5 mm | up to 5 mm |
| Temperature resistance | -40 to +100°C | up to +150 °C |
| Further resistances | moisture resistant | Highly moisture-resistantUV-resistant (suitable for outdoor use)Resistant to vibrations, impact loads, shock loads |
Advice on Loctite universal structural adhesives from Henkel
We will be happy to help you select the right Loctite brand universal structural adhesive from Henkel for your application.
Simply contact the Loctite experts at abovo, the Henkel distributor for Switzerland, either by phone or e-mail:
- Telephone number: +41 32 552 44 44
- E-mail: info@abovo.ch


